Standard Abrasives A/O Precision Cartridge Roll, 726017, R8-ST, 180, 1/2 in x 1-3/4 in x 1/4 in, R8, 25/Car, 2Case of 50

• Attached drive stem helps eliminate loosening and vibration for longer, smoother use than a conventional cartridge roll
• Model R rear-mounted 1/4˝ stem maximizes use of the roll for improved productivity and less downtime
• Multi-layer design continually reveals fresh abrasive for longevity
• Small size enables operators to reach tight spots with high speed
• Solid construction excels at high tolerance and precision grinding
• Straight cylinder shape easily follows contours
• Suitable for use on ferrous metals
• Versatile range of sizes and grades are designed to meet specific project needs

Standard Abrasives Aluminum Oxide Precision Cartridge Roll Model R is ideal for high-speed grinding and deburring on irregular contours and hard-to-reach areas on all ferrous metals. The drive stem is solidly affixed to the rear of the roll, and the solid inner core is bonded with the inner layers for greater stability, a smoother application and longer life than conventional cartridge rolls.

Recommended Applications
The multi-layered Standard Abrasives™ Aluminum Oxide Precision Cartridge Roll Model R (formerly Kay Rolls) has self-trimming capability during use that exposes new abrasive cutting points throughout the life of the roll. The secure bond of the roll to the drive stem eliminates loosening and vibration. This makes our Precision Cartridge Roll especially beneficial when high tolerance and precision grinding are required.

Combining an aggressive cut with durability makes it great for polishing, edge breaking and removal of machine tool marks or flash. Its small size and shape enable it to blend, deburr and polish inside holes and diameters or on irregular surfaces and contours. The mounted stem attaches to a high speed rotary tool such as a die grinder or drill for smooth, controlled high-speed grinding.

Running a Cartridge Roll on a High-Speed Tool
The Model R cartridge roll has a rear mounted 1/4˝ stem making the entire roll usable for increased productivity and reduced downtime. This stem attaches to a rotary tool such as a die grinder or drill for smooth, controlled high-speed grinding, and negates the need for a separate mandrel attachment.

Aluminum Oxide Cartridges Offer a Broad Range of Options
We offer Aluminum Oxide Precision Cartridge Rolls in a wide variety of sizes and grades to suit particular contours and different applications. For Model R, grades range from 40-320, producing a spectrum of finishes from coarse to fine. Aluminum oxide mineral cuts sharp and is friable – fragmenting under heat and pressure to reveal sharp cutting edges as it abrades the surface.

Benefits of a Multi-Layer Design
Seemingly small, these cartridge rolls conquer big challenges when space gets tight. The multi-layer, multi-wear design of a Standard Abrasives™ Cartridge Roll keeps it cutting sharp and helps it withstand repeated wear. As top layers wear down with use, underlying layers expose fresh mineral, so you get a continuous and consistent cut, part after part. Wrapping multiple layers of the abrasive material around into a roll contributes to its sturdiness and durability.

A resin bond securely anchors mineral to the cloth backing – also enhancing the abrasive's toughness and strength. The closed-coat construction means mineral grains cover 100 percent of the cloth backing, so that a smoother, more consistent finish is achieved.

Quality Standard Abrasives™ Solutions for Industrial Applications
The Standard Abrasives brand has supplied quality abrasives to the metalworking industry for over 50 years. Customers rely on our broad offering of high performance products including coated, bonded, and non-woven abrasive lines.

Trusted Standard Abrasives Model

The Standard Abrasives A/O Precision Cartridge Roll, model 726017 R8-ST, offers reliable performance for precision grinding tasks. This brand has been trusted in metalworking for over 50 years, ensuring quality and consistency in every roll.

Designed specifically for high-speed grinding and deburring, this model features a rear-mounted 1/4 inch stem that maximizes roll usage and reduces downtime. Its solid construction supports high tolerance applications with smooth operation.

Precise Dimensions And Size

Measuring 1/2 inch by 1-3/4 inch by 1/4 inch, this cartridge roll fits into tight spaces where precision is critical. Its small size allows operators to reach hard-to-access areas with ease during grinding and polishing tasks.

The straight cylinder shape follows contours smoothly, making it ideal for irregular surfaces. This size specification ensures compatibility with various rotary tools for controlled, high-speed grinding.

Durable Multi-Layer Design

The multi-layer design of the Standard Abrasives cartridge roll continually reveals fresh abrasive material as it wears, extending the product’s life. This feature maintains a consistent cut and sharpness throughout use.

Each roll is constructed with a resin bond that securely anchors the aluminum oxide mineral to the cloth backing. This closed-coat construction covers 100 percent of the backing for a smooth and even finish.

Wide Grade Range Options

This product comes in grades ranging from 40 to 320, offering a spectrum of finishes from coarse to fine. The aluminum oxide mineral cuts sharp and fragments under heat and pressure, exposing new cutting edges continuously.

These grade options allow users to select the perfect abrasive strength for polishing, edge breaking, or removing machine tool marks. The versatility supports various project needs with consistent performance.

Convenient Pack Size Format

The cartridge rolls are supplied in packs of 25 per carton, with 250 rolls per case. This packaging supports efficient inventory management and ensures availability for large-scale industrial applications.

The format includes an attached drive stem that eliminates the need for separate mandrel attachments, simplifying setup and improving productivity during high-speed grinding operations.